Specification:
 Power require: 5V2A
 MCU: F103C8T6
 Transceiver IC: ADF7021, Programmable output power: -16dBm to +10dBm
 TCXO: 14.7456MH z, ± 2.5 ppm
 PCB: 40mmx40mmx 1.2 mm
 Host: NanoPi NEO 512M RAM, v 1.4, A3 Architecture
 Options USB WiFi: RTL8188CUS
 Replaceable folding antenna, center frequency 433MHz.
 External USB port for USB wifi ^^ rtlsdr stick ^^Usb to Serial connect Nextion 2. x-3. x tft screen
 OLED: I2C 128*64px
 SDCard: 32gb
 Charging cable: Micro USB can transfer data, support 5V2A
 DOCS: Manual&software
 wiki. friendlyelec. com/wiki/index. php/NanoPi_NEO
 wiki. friendlyelec. com/wiki/index. php/NanoHat_OLED
 **Modem TYPE ""MMDVM_HS_NPi Hat (VR2VYE) for Nano Pi (GPIO) ""
 update FW sudo pistar-vyehsflash nano_hs**
 www. pistar. uk/beta/Pi-Star_NanoPi_V 4.1. 5_25-Jun-2021. zip
 Package included:
 1. NanoPi 512M RAM
 2.
 SDCard: 16-32G
 3. 50cm data cable
 4. NanoHat OLED
 MMDVM nanopi pistar hotspot setup GUIDE:
 connect RJ45 cable to hotspot, power up with 5V 2A Phone Charge
 to ensure and check OLED left LED Flash (not green one) it Mean the RF board
 Running if not, repower again
 wait 1 minute the same router computer open http: //pi-star
 mac open http: //pi-star. local
 login: pi-star pass: raspberry
 http: //pi-star/admin/configure. php
 Radio/Modem Type: set Modem: STM32-DVM- (Pi Hat) GPIO then Save
 MMDVM Display Type:
 then select OLED then Save
 reselect Modem: STM32-DVM- (Pi Hat) GPIO then save
 you can see the OLED on
 open http: //pi-star/admin/expert/edit_mmdvmhost. php
 OLED Scroll set 1
 Apply Changes
 the base setting is ok, you can select your Digital Mode now
 if every thing work well pls don't update the pi-star
 FAQ:
 Q: the OLED didn't Work?
 A: Check the RF board the LED need flash 1s on/off, repower to let it work.
 Q: the hotspot DMR didn't work?
 A: go to admin live log download the log file to see what happen